Table 2

Mean effect size and heterogeneity analysis for the two outcome measures in the posttest and follow-up.
Time point / Outcome measure k d+ 95% C. I Q df p I2
dl du
Posttest: Behaviours 14 1.328 0.756 1.901 402.12 13 < .001 97%
Posttest: Knowledge 16 1.288 0.898 1.679 387.23 15 < .001 96%
Follow-up: Behaviours 6 1.795 0.672 2.919 236.48 5 < .001 98%
Follow-up: Knowledge 9 0.762 0.473 1.050 41.97 8 < .001 81%

k: number of studies. d+: mean effect size. dl and du: lower and upper confidence limits of the 95% confidence interval around the mean effect size. Q: heterogeneity statistic. df: degrees of freedom. I2: heterogeneity index.

Calvo-Muñoz et al.

Calvo-Muñoz et al. BMC Musculoskeletal Disorders 2012 13:152   doi:10.1186/1471-2474-13-152

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